Hyla affinis Baird, 1854, Proc. Acad. Nat. Sci. Philadelphia, 7: 61. Syntypes: not stated; USNM 11410 (five specimens, formerly numbered 3261) according to Cochran, 1961, Bull. U.S. Natl. Mus., 220: 50; USNM 11410a designated lectotype by implication via treatment as holotype by Cochran, 1961, Bull. U.S. Natl. Mus., 220: 51; more formal lectotype designation of this same specimen by Gorman, 1960, Herpetologica, 16: 218; note that Yarrow, 1882, Bull. U.S. Natl. Mus., 24: 175, also regarded a single specimen under USNM 11410 as "type" and presumably intended a lectotype designation. Type locality: "Northern Sonora", Mexico, or likely in the Gadsden Purchase region in what is now Arizona, USA, south of the Gila River; restricted to "Santa Rita Mts.", Pima and Santa Cruz counties, Arizona, USA, by Smith and Taylor, 1950, Univ. Kansas Sci. Bull., 33: 354; restricted to Peña Blanca Springs, 10 miles northwest of Nogales, Santa Cruz County, Arizona, USA, by Gorman, 1960, Herpetologica, 16: 218. Preoccupied by Hyla affinis Spix, 1824.
Hylarana fusca Baird, 1859, Rep. U.S-Mex. Bound. Surv., 2(Pt. 2-Rept.): 35 (caption), and Pl. 37, fig. 10-13. Holotype: Animal figured in the original publication, presumably originally deposited in the USNM or ANSP; not known to still exist. Type locality: Not stated, but presumably from the United States--Mexico boundary region. Nomen oblitum, tentatively placed in this synonymy by DRF and R.W. McDiarmid on the basis of the illustration and the presumption that the specimen actually came from the United States--Mexico boundary region.
Hyla arenicolor Cope, 1866, J. Acad. Nat. Sci. Philadelphia, Ser. 2, 6: 84. Replacement name for Hyla affinis Baird, 1854.
Hyla copii Boulenger, 1887, Ann. Mag. Nat. Hist., Ser. 5, 20: 53. Syntypes: BMNH 1947.2.23.26-27 (formerly 87.5.12.48-49) according to Condit, 1964, J. Ohio Herpetol. Soc., 4: 89. Type locality: "El Paso, Texas", USA. Synonymy by Cope, 1888, Am. Nat., 20: 80; Kellogg, 1932, Bull. U.S. Natl. Mus., 160: 156. See comments by Boulenger, 1888, Ann. Mag. Nat. Hist., Ser. 6, 1: 187-189, regarding distinctiveness of this form.
Hyla coper — Cope, 1888, Am. Nat., 20: 80. Error for Hyla copii.
Hyliola digueti Mocquard, 1899, Bull. Soc. Philomath., Paris, Ser. 9, 1: 165. Syntypes: MNHNP 1898.257-258, 1901.343-345, according to Kellogg, 1932, Bull. U.S. Natl. Mus., 160: 158; Guibé, 1950 "1948", Cat. Types Amph. Mus. Natl. Hist. Nat.: 19, noted only 2 syntypes. Type locality: "territoire de Tepic" (=Nayarit), Mexico. Synonymy by Kellogg, 1932, Bull. U.S. Natl. Mus., 160: 152.
Cope's Hyla (Yarrow, 1882, Bull. U.S. Natl. Mus., 24: 24).
Arizona Tree Frog (as "Hyla chrysoscelis": Strecker, 1915, Baylor Bull., 18: 50).
Sonoran Tree-toad (Slevin, 1928, Occas. Pap. California Acad. Sci., 16: 110).
Cañon Tree Toad (Storer, 1925, Univ. California Publ. Zool., 27: 43; Kellogg, 1932, Bull. U.S. Natl. Mus., 160: 156).
Canyon Tree Toad (Stebbins, 1951, Amph. W. North Am.: 313).
Canyon Tree Frog (Wright and Wright, 1933, Handb. Frogs Toads U.S. Canada: x; Schmidt, 1953, Check List N. Am. Amph. Rept., Ed. 6: 69).
Canyon Treefrog (Conant, Cagle, Goin, Lowe, Neill, Netting, Schmidt, Shaw, Stebbins, and Bogert, 1956, Copeia, 1956: 176; Stebbins, 1966, Field Guide W. North Am. Rept. Amph.: 67; Collins, Huheey, Knight, and Smith, 1978, Herpetol. Circ., 7: 11; Liner, 1994, Herpetol. Circ., 23: 22; Frank and Ramus, 1995, Compl. Guide Scient. Common Names Amph. Rept. World: 54; Collins, 1997, Herpetol. Circ., 25: 12; Crother, Boundy, Campbell, de Queiroz, Frost, Highton, Iverson, Meylan, Reeder, Seidel, Sites, Taggart, Tilley, and Wake, 2001 "2000", Herpetol. Circ., 29: 10; Stebbins, 2003, Field Guide W. Rept. Amph., Ed. 3: 221; Frost, McDiarmid, and Mendelson, 2008, in Crother (ed.), Herpetol. Circ., 37:6; Liner and Casas-Andreu, 2008, Herpetol. Circ., 38: 14; Collins and Taggart, 2009, Standard Common Curr. Sci. Names N. Am. Amph. Turtles Rept. Crocodil., ed. 6: 7; Frost, McDiarmid, Mendelson, and Green, 2012, in Crother (ed.), Herpetol. Circ., 39: 15).
Mountains and plateau areas of USA (southern Utah and southern Colorado southward through eastern Arizona, western and northern New Mexico (east to about Las Vegas), and Trans-Pecos Texas); southward in Mexico to Michoacán, Colima, México, Guerrero, and Oaxaca.
In the Hyla eximia group of Faivovich, Haddad, Garcia, Frost, Campbell, and Wheeler, 2005, Bull. Am. Mus. Nat. Hist., 294: 102. For account see Duellman, 1970, Monogr. Mus. Nat. Hist. Univ. Kansas: 514-518. Barber, 1997, in Rocek and Hart (eds.), Abstr. 3rd World Congress Herpetol.: 13, suggested that populations in central Arizona separated by the Mogollon escarpment may be taxonomically distinct. Barber, 1999, Mol. Ecol., 8: 547-562, found that within the USA nominal Hyla arenicolor is composed of three species, yet to be formally recognized, and discussed previously published evidence of a cryptic species in the Balsas Depression of Mexico. Stebbins, 2003, Field Guide W. Rept. Amph., Ed. 3: 221, provided a brief account, figure, and map. Cudia and Painter, 2008, Herpetol. Rev., 39: 478, provided a record for San Miguel Co., northeastern New Mexico. Reyes-Velasco, Hermosillo-López, Grünwald, and Avila-López, 2009, Herpetol. Rev., 40: 117-120, provided a record for Colima, Mexico.
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